Q: Left front strut makes clanking sound when driving over bumps

I had told the dealership that I could leave my car for only one day, but they kept it for a week and refused to let me take it. They said they wanted to paint it when I told them not to. I asked, but they avoided telling me where they were painting it. When I did finally get it back, 56 miles had been driven on it. All my radio stations had been changed and it had a very low MPG. So they had been driving around in ‘my’ car!!

It has a loose lining panel in the area where the left rear strut is and the strut clanks when I drive over bumps. When I returned my car, the dealer ‘did’ hear the clunk noise and said it was the brake. When I went back to pick up my car, they said they had ordered the wrong brake and laughed! I called them two weeks later and they said it would be in the next day and laughed again. They did install the brake, but the clunking noise is still there. I proceeded to go to two other dealerships for 2nd/3rd opinions but neither of them could hear the noise. So I put an action cam in my car and made a video from inside the suspension. After “eight” service calls, finally they replaced the strut and fixed the clunk. But I have additional problems like the sagging to the driver’s side, a super high frame in front and several others. My question is: am I not communicating with these mechanics and can you make suggestions so I will be treated better when I go to have more problems fixed?